Inking mechanism for bed and cylinder printing presses



. BARBER.

INKING MECHANISM FOR BED AND CYLINDER PRINTING PRESSES.

APRLICATION FILED FEB- 24, I920.

Rammed Oct 3 1922.,

7SHEETSSHEET I.

, H. M. BARBER. v INKING MECHANISM FOR BED AND CYLINDER PRINTING PRESSES.

APPLICATION FILED FEB. 24. I920.

Patented v0%. 3, 1922a.

7SHEETSSHEET 2.

H. M. BARBER.

INKING MECHANISM FOR BED AND CYLINDER PRINTING PRESSES.

APPLICATION FILED FEB. 24, I920.

Patented 00$. 3, 1922.

7SHEETSSHEET 3.

H. M. BARBER.

INKING MECHANISM FOR BED AND CYLINDER PRINTING PRESSES.

APPLICATION FILED FEB. 24,1920.

Patented Oct. 3, 1922,

7SHEETSSHEET 4.

H. M. BARBER.

INKING MECHANISM FOR BED AND CYLINDER PRINTING PRESSES. APPLICATION FILED FEB. 24, 1920.

1,43LQ88. Patented 001. 3, 1922.

III

H. IVI. BARBER. INKING MECHANISM FOR BED AND CYLINDER PRINTING PRESSES. APPLICATION FILED FEB. 24. I920.

II ,4I3 1 $088., Patented Oct. 3, 19220 YSHEETS SHEET 6.-

H. M. BARBER. INKING MECHANISM FOR BED AND CYLINDER PRINTING PRESSES.

APPLICATION FILED FEB. 24, I920.

Patented 0st. 3, 1922.

7 SHEETS-SHEET 7.

n me on. a, 1922.

warren sraras PATENT orrica.

HOWARD M. BARBER, F STONINGTON, CONNECTICUT, ASSJ EGNOR TO C. B. COTTRELL &

SONS COMPANY, OF NEW YURK, N. Y.,

A. CORPORATION OF DELAWARE.

INKING MECHANISM FOR BED AND CYLINDER PRINTING PRESSES.

Application filed February 24, 1920. Serial No. 360,881.

To all whom it may concern:

Beit known that I, HOWARD M. BARBER, a citizen of the United States, and resident of Stonington, in the county of New London and State of Connecticut, have invented a new and useful Improvement in Ink-ing echanism for Bed and Cylinder'Printing Presses, of which the following is a specification.

means for raising the '30 the relation of the bed and cylinder to.

print the difi'erent forms as is now necessary on bed and cylinder presses, where the inking mechanism is located at the front of the cylinder.

Third: Both automatic and manual form rollers away from the bed without disconnecting them from their vibrator rollers.

in the plane of the Fourth: A roller stand carrying the distribution and movable into and out of its operative position without disconnecting the device for operating the fountain roll and the duct or roll.

Fifth: Form rollers which. are driven continuously in one direction.-

' A practical embodiment of my invention is represented in the accompanying drawings, in which Fig. 1 represents in side elevation so much. of a bed and cylinder printing press as will illustrate my invention.

Fig. 2 represents a vertical section from front to rear throu h the machine, taken ine'II-H of Fig. 5, looking in the direction of the arrows.

Fig. 3 represents a view similar to Fig. 1 with the form rollers raised and the distribution roller stand moved back out of the operative position.

Fig. 3 represents a detail section showroller stand moved back out tive position.

' ing the ductor roll operating mechanism in the position it assumes when the roller stand is in the position shown in Fig. 3.

Fig. 4 represents a section taken in the plane of the line IVIV of Fig. 5, lookingrin the direction of the arrows.

ig. 5 represents a vertical cross section taken in the plane of the line V-V of Fig. 1, looking in the direction of the arrows, certain of the parts being broken away. V

F 1g. 6 represents a vertical cross section taken in the plane of the line VI--VI of Fig. 1, looking in the direction of the arrows.

Fig. 7 represents a detail vertical section taken in the plane 'of the line VIT-'-VI][ of Fig. 5, looking in the direction arrows.

Fig. 8 represents a detail horizontal section taken in the plane of the line VIII-VH1} of Fig. 7, looln'ng in the direction of the arrows. v

Fig. 9 represents a detail vertical section similar to ,Fig. 7 with the distribution of its operaof the Fig. IOrepresents a detailside view on an enlarged scale showing the form rollers and their operating mechanism.

Fig. 11 represents a horizontal section taken in the plane of the line XI-XI of Fi .10;

ig. 12 represents a detail vertical cross section taken in the plane of the line XII-XII of Fig. 10, looking in the direction of the arrows.

Fig. 13 represents a detail vertical section taken in the plane of the line XIII-XIII of Fig. 12.

The main frame is denoted by 1, the reciprocating bed. by 2, the form carried thereby, by 3, the impression cylinder by 4, the hinged sheet feed board by 5, the form roller frames by 6 and the distribution roller stand by 7. The delivery mechanism is omitted- Also the means for raising and lowering the cylinder 4 and the means been omitted, well known or approved means may .be employed for these purposes.

The impression cylinder shaft 8 is con-= for reciprocating the'bed 2 have it being understood .that any nected to the bed reciprocating shaft 9 through the gears 10 and 11. The cam shaft 12- is driven from the shaft 9 through the gears 13, 14.

The driving connection for the distribu tion is as follows:

Gears. 15, 16, are fast on the bed driving shaft 9. A gear 17 which meshes with the ear 15 is mounted on the stud shaft 18. aears 19 and 20 are loosely mounted on the hub of the gear 17, the gear 20 meshing with 'the gear 16. The gears 16 and 20 are irregular gears. The gear 21 is carried by the shaft 22. This gear is either in mesh with the gear 19 or the gear 17.

The means for shifting this gear comprises a rock lever 23 pivoted at 24 to the main frame, one arm of which lever is provided with a stud 25 which travels in the groove of a cam 26 on the cam shaft 12, and the other arm of which is provided with a stud 27 traveling in a groove of the shift collar 28 fixed on the shaft 22.

-When the distribution roller stand is in its operative position, the gear 21 is in mesh with a wide face gear 29 were the gear 21 to be in mesh with the gear 17 or'the gear 19. This wide face gear 29 is carried by the roller stand 7 and meshes with one of the distribution roller gears 30, which in turn meshes with the gear 31. The gears 29, 30 and 31 are always in mesh whether the roller stand 7 is in' its operative or inoperative position. v

The ink distribution comprises the fountain roll 32, the ductor roll 33, the ink cylinder 34, several inking rolls 35 and the several vibrator rolls 36.

The ink fountain roll 32 is operated from the cam shaft 12 and is connected to said operating means on shaft 12 whether the roller stand is in its operative or inoperative position. The mechanism for operating this fountain roll includes an eccentric cam 37 on the shaft 12, which controls the movement of the vrock shaft 38 through the connecting rod 39 and rock arm 40. This rock shaft 38 is connected to. the pawl arm 41 through the arm 42 and telescoping rod members 43, 44. The throw of the pawl 45 along its fountain roll ratchet 46 is controlled by the adjusting screw 47.

The ductor roll is operated from the cam shaft 12 when the roller stand is in its operative position and is disconnected from the cam shaft'12 when the roller stand is in its inoperative position. This mechanism is as follows:

A cam 47 on the shaft 12 controls the arm 51, when the roller stand is moved into its operative position.

The rod 52 is provided with an abutment 56 arranged in position to be engaged by one arm 57 of a rocking latch lever, the other arm 58 of which is engaged by a rod 59 uprising from the arm 60 of a rock lever, pivotedat 61 to the main frame, the other arm 62 of which lever is connected by a rod 63 to one arm 64 of a rock lever, plvoted at 65 to the main frame. The other arm 66 of this lever is provided with an uprising rod 67 extended into position to be engaged by the movable bearing of the cylinder. A spring 68 tends to swing the arm 57 of the latch lever into its locking engagement with the abutment 56 when the rod 59 is lowered by the raising of the journal bearing of the cylinder. This arrangement .prevents the ductor roll from contactin with the fountain roll unless the cylinder is down in its printing position.

The form rollers 69, are herein shown as arranged in two pairs, each pair contacting with their particular vibrator roller 36. Automatic means are provided for raising and lowering these form rollers without disturbing their contact with their respective distributor rollers, which means is constructed, arranged and operated as follows:

Links 70 are pivoted to swin 71, carried by the main frame. are raised and lowered by cams 72 on the cam shaft 12, through the connecting rods on rods 73, having studs 74 traveling in the cam grooves 75.

- Two pairs of rocking leversare pivoted to the main frame M37 6, 77, with their arms 78, 79 pivoted to blocks 80 fitted to travel in cam slots 81; in the links 70. Rods 82 connect their respective rocking levers with the blocks 83, which arefitted to slide in the grooves 84 in the roller side frames 6, which grooves are concentric with the axes of the vibrator rollers 36, which contact with the form rollers 69. These blocks 83 have bearings 83* for the form rollers. These bearings 83* are mounted in adjusting brackets 85. The adjustment of the brackets being accomplished by lock bolts movement of the rock shaft 48 through the. 86, which pass through elongated slots 87 connecting rod 49 and arm 50. This rock shaft 48 is provided with an arm 51, u on which rests a connecting rod 52 attac ed on its upper end to one arm-53 on the ductor roll shaft 54, the other arms 55 of which 7 in the said brackets, into engagement with the blocks 83.

The manual means for raising these form rollers and holding them raised without disconnecting them from their vibrator rollers hese links 1 ,aenosa 90. This cross shaft 88 is provided exterior to the machine frame with a suitable operating hand lever 91.

The means for moving the roller stand into and out of its. operative position is constructed, arranged and operated as follows:

The roller stand is slidably mounted on vertically movable side tracks 92, each connected to the main frame by a pair of toggle levers 93. These toggle levers are straightened out to lift the'side tracks, and thereby the roller stand by rods 94:, which connect the joints of the toggle levers to the uprising arms 95 on the cross shaft 96. This cross shaft 96 is provided with a suitable opcrating hand lever 97 exterior to the main frame at the rear of the press. Latch levers pivoted at 98 to the main frame have arms 99, which are arranged in position .to engage abutments 100 on the connecting rods 94: for locking the side tracks and roller, standin their raised position when the roller stand is in its inoperative position. These latch levers are also provided with uprising arms 101, which are arranged in position to be engaged by abutments 102 on the roller frame when the roller frame is moved to a position to bring its vibrator rollers over the form rollers for releasing the toggle levers and permitting the side tracks to be lowered, thus lowering the vibrator roller into contact with the form rollers.

The roller stand may be moved back and forth along its side tracks by providing the side tracks with racks 103, which are engaged by pinions 104, which pinions in turn are engaged by pinions 105 on the cross hand shaft 106. This hand shaft 106 may be provided exterior to the roller stand with a suitable hand wheel 107 for moving the roller stand.

It will be seen that by locating the distribution at the back of the cylinder instead of at the front ofthe cylinder, the rollers of the distribution will be protected from paper dust and slitter dust, where a slitter is used. Also this arrangement leaves the delivery and of the press free and clear. Also this arrangement permits the location of the distribution so that the type line is the same on two, three or four roller forms and the relation of the bed and cylinder does not have to be changed as is necessary in bed and cylinder presses using the old method of inking with the distribution located at the front of the cylinder.

It will be observed that the form rollers are driven continuously in one direction while the press is in operation, whether the form rollers are in their raised or lowered position. The form rollers are automatically raised circumferentially about their contact therewith during the non-printing stroke of the bed when the movement of the bed is opposite to that of the form rollers. Manual means are employed for locking the form rollers in their raised position when so desired, so that the full distribution including the form rollers may be inked up by running the press without depositing a partially distributed supply of ink on to the form.

Where the travel of the bed is short as in the present embodiment, T have provided a combination of regular and irregular gears as hereinbefo-re described, so that once during each cycle of the press the drive imparts to *the distribution a variable speed which retards and accelerates the speed of the rollers. The rollers are retarded during the latter part of the return stroke of the bed, while the form rollers are in their raised position. As the form rollers are lowered into contact with the form, the rollers are accelerated and their travel is synchronous with that of the form from the time of contact during the full inking stroke. This is accomplished by the shifting of the gear 21 alternately into and out of mesh with the gears 17 and 19, the gear 19 being fast to the irregular gear 20, which meshes with the irregular gear 16. When. the gear 21 is in mesh with the gear 19, it causes the form rollers to accelerate with the bed. After the bed has reached its regular speed, the gear 21 is'shifted into mesh with the gear 17, andthe form rollers will continue to travel at the regular speed of the bed until the bed again approaches the reversal movement on its printing stroke. The gear 21 will again be shifted intomesh with the gear 19 and the retarding and accelerating action of theof the bed is extended to a sufiicient extent,

the distribution may be driven at a uniform speed as the form rollers will not then have to be brought into engagement with the form until the bed has reached its regular speed.

It will be noted that the parts are so arranged that the distribution may be moved away from the form rollers by successive upward and rearward movements, the same being accomplished without disconnecting the fountain roll driving mechanism. This is provided for by the telescoping of the two rod members 43, 44. As has already been stated,.the,.portion of'the distribution carried by the. roller stand is raised to lift the vibrator rollers out of engagement with-the .dorm rollers and high enough to Permit the form rollers to pass rearwardly with suflimew 'an inking mechanism located wheel 107 on the roller stand is then turned to roll the stand backwardly along' the tracks to move the distribution away from the form rollers. The train of gears carried by the roller stand beginning with the gear 29, will be moved to disconnect the gear'29 from the gear 21. The ductor roller 33 will, at the same time, be held out of engagement with the fountain roll 32 by the engagement of the arm 57 of the latch lever with the abutment 56 on the rod 52. The movement of the ductor rolL is controlled by the movement of the impression cylinder through the parts 57 to 67 inclusive. This control prevents the ductor roll from contacting with the fountain roll unless the impression cylinder is down in its printing position, the latch lever 57, 58 holding the rod 52 raised until the latch lever is released.

The coil spring 108 which surrounds the rod 52, tends to force the rod downwardly against the arm 51 and as the arm 51 moves downwardly under the control of the cam 47, the ductor roll is brought into engagement with the fountain roll. There are conditions uhder which it is desirable to operate the distribution including the ductor roll for several cycles of the press with the cylinder tripped, in which case it is necessary to throw the latch lever 57, 58 back 'far spring 68 past the cenenough to force the ter, where it will remain until thrown back by hand.

It is evident that various changes might be resorted to in theconstruction, form and arrangement of the several parts without departing from the spirit and scope of my invention; hence I do not wish to limit myself to the particular embodiment herein shown and described, but i What I claim is:

1. In a bed and cylinder printing press, an inking mechanism located at theback of the impression cylinder including form rollers and vibrator rollers, automatic means for raising the form rollers,about their respective vibrator rollers in contact therewith,

and manual means for maintaining the form rollers in their raised position. 2. In a bed and cylinder the impression cylinder including form rollers and vibrator rollers, means for raising the form} rollers about their respective vibrator rollers in contact therewith, and for driving the form rollers in one direction only at varying speeds corresponding to the speed of travel of the bed.

3. In a bed and cylinder printing press, an inking mechanism located at the back of the impression cylinder including form rollers and vibrator rollers, means for raising the form rollers about their respective vibrator rollers in contact therewith, and

means for driving the form rollers in one the inking mechanism printing press,

at the back of direction only at a" certain speed" between the ends ofithestroke of the bed and at varying speeds atthe end of the stroke 'of the bed of the impression cylinder including form rollers, and means for driving the form rollers at varying speeds consisting of a train of gearing comprising intermeshing regular gears, intermeshing irregular gears, a wide face gear and a gear always meshing with the wide face gear and shiftable at predetermined intervals alternately into mesh with the regular and irregular gears.

5. In a bed and cylinder printing press, a main frame, an inking mechanism located at the back of the impression cylinder including the form rollers, a roller stand forming a support for the balance of the inking mechanism, means carried by the main frame for imparting an upward movement to the roller stand,- and separate means carried by the roller stand for imparting a backward movement thereto, for removing the balance of the inking mechanism from its operative connection with the form rollers.

6. In a bed and cylinder printing press, a main frame, an inking mechanism located at the back of the impression cylinder including theform rollers, automatic means for raising and lowering the form rollers, a roller stand forming a support for the balance of the inking mechanism, means carried by the main frame for imparting an upward movement to the roller stand,and separate means carried by the roller stand for imparting a backward movement thereto for removing the balance of the. inking mechanism from its operative connection with the form rollers. I

7. In a bed and cylinder printing press, an inking mechanism located at the back of the impression cylinder including. form rollers, a roller stand forming a support for the balance of the inking mechanism, means for imparting upward and backward movements to he rollerstand to remove the balance of from its operative connectionwith the form rollers, and means for automatically locking the roller stand in its raised position and for automaticall unlocking the stand as it reaches the limlt of its. forward movement to permit it to be lowered tobring the portion of the inking mechanism carried thereby into operative forming a support for the balance of the ink ing mechanism, means for raising the tracks and thereby the stand to lift the balance of the main frame, a

raainee the inking mechanism away from the form rollers, and means for moving the stand backwardly along the tracks out of the way of the said form rollers.

9. In a bed and cylinder printing press, a main frame, an inking mechanism located at the back of the cylinder including form rollers, tracks carried by the main frame, a rollerv stand mounted on said tracks and an inking mechanism located at the back the impression cylinder including form roll- .ers and a fountain roll, means for driving the fountain roll, a roller stand forming a support for the fountain roll and the balance of the inking mechanism other than the form rollers, and means for moving the stand and the portion of the inking mechanism carried thereby into and out of operative position without disconnecting the fountain roll drivin mechanism.

11. n a bed and cylinder printing press, an inking mechanism located at the back of the impression cylinder including form rollers and a ductor roller, means for operating the ductor roller, a roller stand forming a support for the ductor roller and the balance of the inking mechanism other than the form rollers, means for moving the stand and the portion of the inking mechanism carried thereby out of its operative connection with the form rollers, and means'for automatically locking the ductor roller against movement when the inking mechanism is out of its operative position.

12. In a bed and cylinder printing press, an inking mechanism located at the back ct the impression cylinder including a vibrator roller and two form rollers, form roller bearings, guides therefor concentric with the vibrator roller, links, means for rocking them,

a pair of rocking levers connected to said bearings and slidably connected to said links whereby the form rollers are raised circumferentially about their vibrator roller without losing contact therewith.

13. In a bed and cylinder printing press, an inking mechanism located at the back of the impression cylinder including a vibrator roller and two form rollers,form roller bearings, guides therefor concentric with the vibrator roller, links, means for rocking them, a pair of rocking levers connected to said bearings and slidably connected to said links whereby the form rollers are raised circumferentially about their vibrator roller without losing contact therewith, and means for moving the links with respect to the le ver connections to hold the form rollers .raised without disconnecting the link oprocking them, front and rear pairs of rocking levers connected to each other, to their respective bearings and slidably connected to said links whereby the form rollers are raised circumferentially about their respective vibrator rollers.

15. In a bed and cylinder printing press, an inking mechanism located at the back of the impression cylinder including front and rear vibrator rollers and two form rollers for each vibrator roller, form roller bearings, guides therefor concentric with their respective vibrator rollers, links, means for rocking them, front and rear pairs of rocking levers connected to each other, to their respective bearings and slidably connected to said links whereby the form rollers are raised circumferentially about their respective vibrator rollers without losing contact therewith, and means for moving the links with respect to the lever connections to hold the form rollers raised without disconnecting the link operating means.

In testimony, that I claim the foregoing as my invention, I have signed my name this seventeeth day of February A. I). 1920.

HOWARD BARBER. 

